IPv4 prefix

203.153.64.0/20

IP Prefix (CIDR)

203.153.64.0/20

Subnet Mask

255.255.240.0

Address Count

4,096

IP Range

203.153.64.0 - 203.153.79.255

Subnet calculator

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Registered Owners

Registration 1 of 2

Owner

Asia Pacific Network Information Center, Pty. Ltd.

Handle

ORG-APNI3-AP

Country

Australia (AU)

Address

Level 1 - 33 Park Road

Registry

APNIC

Registered Prefix

203.0.0.0/8 (203.0.0.0 - 203.255.255.255)

Delegated Prefix

203.254.12.0/22 (203.254.12.0 - 203.254.15.255)

Registration 2 of 2

Owner

Japan Network Information Center

Handle

JNIC1-AP

Country

Japan (JP)

Address

Uchikanda OS Bldg 4F, 2-12-6 Uchi-Kanda Chiyoda-ku, Tokyo 101-0047, Japan

Registry

JPNIC

Registered Prefix

203.153.64.0/24 (203.153.64.0 - 203.153.64.255)

Delegated Prefix

203.153.64.0/20 (203.153.64.0 - 203.153.79.255)

BGP Announcements

Announced Prefix	Relationship	Origin ASN	Description	Country	First Address	Last Address
203.153.64.0/20	Exact	AS17931	Netforest Inc.	Japan (JP)	203.153.64.0	203.153.79.255